What are some ways that animals can be fossilized?

Decay with the help of radioactive carbon 14 and non radioactive carbon 12

You could wait till it decays in the soil/ground. Or preform it artificially. 

10.063g / 10.00 ml = 1.0063 g/ml which rounds off to 4 sig figs as: 1.006 g/ml

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.